EP3606804B1 - Fahrgestell für ein nutzkraftfahrzeug mit verstärkungen eines kabinenbodens zur bildung einer schnittstelle zur befestigung einer auf dem fahrgestell montierten zelle - Google Patents

Fahrgestell für ein nutzkraftfahrzeug mit verstärkungen eines kabinenbodens zur bildung einer schnittstelle zur befestigung einer auf dem fahrgestell montierten zelle Download PDF

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Publication number
EP3606804B1
EP3606804B1 EP18714820.0A EP18714820A EP3606804B1 EP 3606804 B1 EP3606804 B1 EP 3606804B1 EP 18714820 A EP18714820 A EP 18714820A EP 3606804 B1 EP3606804 B1 EP 3606804B1
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EP
European Patent Office
Prior art keywords
chassis
reinforcements
cabin
floor
cabin floor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP18714820.0A
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English (en)
French (fr)
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EP3606804A1 (de
Inventor
Said Benane
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stellantis Auto SAS
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Stellantis Auto SAS
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Publication date
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Publication of EP3606804A1 publication Critical patent/EP3606804A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/09—Means for mounting load bearing surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17

Definitions

  • the present invention relates to the field of utility type vehicles configured for the transport of loads, comprising a chassis on which a rigid cell housing the loads is installed.
  • the invention relates more particularly to the methods of reinforcing a cabin floor that comprises such a chassis and/or the methods of fixing the cell to the chassis.
  • Utility vehicles are configured for transporting loads and include a rolling chassis carrying a cabin and a rigid cell.
  • the cabin is installed on the chassis at the front of the vehicle and provides a passenger compartment for the driver.
  • the cell is installed at the rear of the vehicle and provides a room for receiving goods to be transported and/or a technical or leisure room depending on specific uses of the utility vehicle.
  • the chassis comprises a base supporting a platform on which the cell is installed.
  • the base commonly includes spars and/or crosspieces providing a support plane for the platform.
  • the traditional architectures of such a chassis have the disadvantage of making the vehicle heavier, which is desirable to avoid.
  • a cabin floor is essentially formed of a sheet metal which is fixed in the front area on a cabin mounting frame and which is fixed in the rear area on the chassis.
  • the problem therefore arises of the resistance of the sheet metal against its deformation, taking into account the heavy loads intended to be loaded on the vehicle. Particularly when taking a turn, the vehicle is subjected to a roll and the cabin floor is then put under torsional stress.
  • the cell extends as far as possible towards the rear of the vehicle. This results in an increase in the forces supported by the cabin floor, in particular as mentioned above when the vehicle takes a turn.
  • the cells can have various arrangements depending on the destination of the vehicle, and are commonly fixed to the chassis according to their configuration and/or their interior layout.
  • the cell is locally anchored to the chassis via bolt or screw type fasteners.
  • the fixing members are placed in engagement with the cabin floor and/or on robust elements of the chassis after having passed through the cabin floor, which tends to weaken it.
  • the assembly of the cell on the chassis can be carried out as quickly as possible to reduce the costs linked to this operation, in the context of economically severe competition in the field of motor vehicles. Such rapid assembly must not, however, affect the quality of the positioning and/or maintenance of the cell on the chassis.
  • the subject of the invention is a motor utility vehicle chassis which comprises a cabin floor and which is configured to receive a partially rigid cell. rear of the vehicle.
  • the invention also relates to a utility vehicle comprising a chassis according to the invention, on which a rigid cell is mounted.
  • An aim of the invention is to propose such a chassis comprising a means for reinforcing the cabin floor against its deformation under the effect of the progression of the vehicle.
  • Another aim of the invention is to allow rapid assembly of the cell on the chassis, making it possible to reduce the costs incurred by this operation.
  • front and rear are relative notions defined longitudinally according to the direction of progression towards the front of the vehicle which is identified according to the driver's station on board the vehicle. The driver while driving the vehicle faces the direction of forward movement of the vehicle.
  • lateral or transverse are identified transversely by the sides of the motor vehicle distributed on either side of a transversely median longitudinal axis of the vehicle extending between the front and the rear of the vehicle. Consequently, a “lateral” or “transverse” direction extends perpendicular to a longitudinal direction extending between the front and the rear of the vehicle.
  • the notions "right” and “left” are appreciated in a direction transverse to the driver's station.
  • the automobile utility vehicle chassis of the invention is configured to receive a rigid cell.
  • the chassis comprises a cabin floor fixed at least on a base of the chassis which comprises at least longitudinal beams extending respectively along the side edges of the chassis.
  • the base comprises support reinforcements for the cabin floor on its lower face.
  • the reinforcements are each laterally embedded between a beam of the base and a wing of the cabin floor which is assigned to them.
  • the reinforcements are notably welded on the one hand to the beam and on the other hand to the cabin floor on its underside and on the wing of the cabin floor.
  • the wings of the cabin floor extend more particularly in a vertical plane, preferably being oriented laterally towards the outside of the chassis.
  • the wings of the cabin floor are thus provided at the side edges of the cabin floor, being oriented laterally towards the outside of the chassis and extending perpendicular to the horizontal plane of extension of the cabin floor.
  • the reinforcements are in particular arranged at least along the edge of the lateral sides in the rear area of the cabin floor, an area particularly stressed in torsion during progression of the vehicle.
  • the reinforcements thus provide a base for the cabin floor providing support against the vertical forces that it is intended to undergo under the effect of the weight of the transported load, particularly housed in the cell.
  • the reinforcements are each configured as a profile extending vertically along the length of the profile.
  • the profiles are welded on the one hand to the underside of the cabin floor and on the other hand transversely against the beam and against the wing of the cabin floor assigned to them.
  • the beams and the cabin floor then form a robust assembly via at least the reinforcements which stiffen the cabin floor in the three directions of an orthonormal reference.
  • the cabin floor is stiffened by the reinforcements, particularly in torsion, against the forces that it is required to support during the progression of the vehicle and/or under the effect of the weight of the transported load resting on the cabin floor.
  • the reinforcements can be of simple structures and/or be easily welded to the chassis, in particular each being formed of a profile extending vertically along its length. The resistance of the cabin floor against its torsion provided by the reinforcements is thus obtained at lower costs.
  • first walls of each of the profiles are respectively welded to the beam and to the underside of the cabin floor assigned to the reinforcements, via returns bordering perpendicularly one of their sections.
  • the edge of a wall of a profile is typically identified as extending along a plane, one of the dimensions of which is defined by the thickness of the wall, or in other words by its smallest dimension, and whose other dimension is defined by any other of its dimensions.
  • the profile extends vertically along its length, the edge of the first walls is therefore defined by their thickness and their width.
  • the profile has in particular a profile with at least three sides oriented perpendicular to each other and extending vertically for at least two of them between the beam and the wing of the cabin floor at a distance from one on the other, at least a third side extending against the wing of the cabin floor or against the beam.
  • the profile forming at least one of the supports is therefore configured in particular as an open or closed polygon, or as a chicane providing return walls extending in particular between a beam and a wing of the cabin floor which are assigned to it.
  • the profile can be configured in a U, square or trapezoid shape.
  • the profiles are each configured in a U.
  • first walls of each of the profiles are formed by the branches of the U welded at their free end to the beams assigned to the reinforcements.
  • a second wall of the profiles perpendicular to the branches of the U is welded to the wing of the cabin floor.
  • the free end of the branches of the U is of course the ends of the branches which are not secured to the second wall of the profile.
  • each of the reinforcements comprises at least one gripping member configured to cooperate with at least one fixing member dedicated to mounting the cell on the chassis.
  • the gripping member(s) are in particular configured to fix the cell in the three directions of extension of the chassis via the fixing member(s).
  • the positioning and maintenance of the cell on the chassis are obtained reliably and efficiently via the reinforcements.
  • the reinforcements being integrated into the chassis in a determined position, the cell can be equipped with support plates. positioning and fixing the cell respectively against one and the other of the reinforcements.
  • Such plates can in particular be applied against the walls of the reinforcements oriented laterally towards the outside of the chassis, in particular against said second walls of the profiles.
  • the installation of the cell by an operator is also simplified, and can be quickly carried out from positioning and fixing the cell at the rear of the chassis essentially provided by the cooperation by the operator between the gripping members and the fixing members.
  • the gripping members are in particular configured to provide locking in position of the cell on the support via the fixing members, following the three longitudinal, transverse and vertical directions of the orthonormal reference defining the directions of extension of the chassis.
  • the cabin floor is thus best preserved from the stresses to which it is likely to be subjected regardless of the pitching and/or rolling movements to which the vehicle is subjected during its progression.
  • the gripping members can have any configuration providing such locking by for example being configured as hooking members.
  • each of the reinforcements are each configured in a hole extending parallel to the plane of extension of the cabin floor, the holes being able to receive fixing members configured as bolts. It will be noted that the fixing members then work essentially by pulling in a direction parallel to the plane of extension of the cabin floor.
  • a plurality of gripping members of any given reinforcement are aligned in a direction perpendicular to the plane of extension of the cabin floor. This makes it possible to reinforce the effectiveness of the reinforcement with respect to the torsional forces it supports.
  • the chassis is potentially equipped with several reinforcements distributed along each of its side edges. However, it is preferred to avoid making the chassis heavier by placing a single reinforcement at each of the side edges of the chassis, particularly in the rear area.
  • the reinforcements are then preferably aligned in a transverse direction of extension of the chassis, being arranged between a rear wheel train fitted to the chassis and its rear end. More specifically, the reinforcements are arranged as close as possible to the rear end of the chassis, in particular near the rear transverse edge of the cabin floor.
  • the chassis comprises two reinforcements placed respectively at each of the side edges of the chassis at the rear of the cabin floor, the reinforcements being aligned in a cross-member direction of extension of the chassis.
  • the invention also relates to a motor utility vehicle comprising a chassis according to the invention, on which chassis is mounted a rigid cell via at least the reinforcements.
  • the cell is notably equipped with plates secured to the reinforcements via the gripping members and the cooperating fixing members.
  • an automobile utility vehicle 1 comprises a chassis 2 carrying a driving cabin 3 at the front Av of the vehicle 1 and a rigid cell 4 at the rear Ar of the vehicle 1.
  • the front Av and the rear Ar of vehicle 1, and therefore of chassis 2 are typically identified in a longitudinal direction L1 of extension of vehicle 1 and the driver's station installed in cabin 3 facing forward Av of vehicle 1.
  • the chassis 2 comprises at least two lateral beams 5 which extend longitudinally L1 along the vehicle 1, and therefore the chassis 2.
  • the beams 5 are arranged at the lateral edges of the vehicle 1 spaced from one another in a direction transverse T1 which is parallel to the rolling plane P1 of the vehicle 1, and therefore of the chassis 2, and which is perpendicular to the longitudinal direction L1.
  • the cabin 3 is mounted on the chassis 1 via a frame 6, including in particular at least uprights, or even potentially a crosspiece.
  • the chassis 2 also includes a cabin floor 7 which extends from the cabin 3 towards the rear Ar of the vehicle 1.
  • the cabin floor 7 is installed at least on the beams 5 while being anchored on the frame 6.
  • the rigid cell 4 is fixed on the chassis 2 overhanging the cabin floor 7 in a vertical direction V1 of extension of the vehicle 1, and therefore of the chassis 2.
  • the rigid cell 4 extends in elevation from the chassis 2 following the vertical direction V1 which is perpendicular to the longitudinal direction L1 and the vertical direction V1.
  • the beams 5 are fixed at their rear longitudinal end on a rear plate 9 which connect the beams 5 together at the rear Ar of the vehicle 1.
  • the rigid cell 4 is fixed to the chassis 2 via at least two reinforcements 8 respectively secured to the beams 5 and the cabin floor 7.
  • the reinforcements 8 are respectively arranged at the side edges and at the rear of the chassis 2, being aligned in the transverse direction T1.
  • the cell 4 is for example provided with plates 10 which are respectively fixed on the reinforcements 8 laterally on either side of the chassis 2.
  • the figure 2 illustrates the arrangement and methods of installation on the chassis 2 of one of the reinforcements 8, which can be transposed to each of the reinforcements 8 to provide reinforcement of the cabin floor 7 and the fixing of the cell 4 on the chassis 2 .
  • the reinforcement 8 is formed of a U-shaped profile extending vertically V1 along its length.
  • the reinforcement 8 is welded on the one hand to the lower face 11 of the cabin floor 7 and on the other hand interposed between the beam 5 and a wing 12 of the cabin floor 7.
  • the wing 12 extends vertically V1 and is formed by a return provided on the side edge T1 of the cabin floor 7.
  • the reinforcement 8 is embedded transversely T1 between the beam 5 and the wing 12, against which the reinforcement 8 is applied. More particularly, the branches of the U form first walls 13a, 13b and are integral at a first of their ends with a second wall 14.
  • the first walls 13a, 13b extend vertically V1 and transversely T1 between the beam 5 and the wing 12.
  • the second wall 14 extends vertically V1 being applied against the wing 12 at its upper end and along its plane P2 extension.
  • the second free ends of the first walls 13a, 13b, opposite their first end secured to the second wall 14, are applied against the beam 5 via returns 15 which they include.
  • the first walls 13a, 13b each include returns 16 provided at the outlet of the profile oriented towards the lower face 11 of the cabin floor.
  • the returns 16 make it possible to reinforce the support and welding of the cabin floor against the first walls 13a, 13b.
  • the returns 15, 16 are preferably oriented towards the outside of the reinforcement 8.
  • the returns 15 extend vertically V1 and longitudinally L1, providing a first seat favoring application and welding against the beam 5 of the first walls 13a, 13b along the edge of their free ends.
  • the returns 16 extend laterally L1 and longitudinally L1, providing a second seat favoring the application and welding against the beam 5 of the reinforcement 8 at its end welded to the lower face 11 of the cabin floor 7.
  • the reinforcement 8 is provided with gripping members 17a, 17b which are configured to cooperate with fixing members 18a, 18b.
  • the cooperation between the gripping members 17a, 17b and the fixing members 18a, 18b is capable of providing lateral L1 and longitudinal L1 positioning, as well as fixing, of the cell 4 on the chassis 1 via the reinforcements 8 and the plate 10 with which cell 4 is equipped.
  • the gripping members 17a, 17b are each configured as a hole 19a, 19b capable of cooperating with bolts 20a, 20b, shown schematically in broken lines.
  • the holes 19a, 19b, and therefore the bolts 20a, 20b extend axially A1 parallel to the plane P3 of extension of the cabin floor 7, and are vertically V1 aligned in a direction D1 or in other words are aligned perpendicular to the plane P3 of the cabin floor 7.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Claims (9)

  1. Fahrgestell (2) für ein Kraftfahrzeug (1), das zur Aufnahme einer starren Zelle (4) konfiguriert ist, wobei das Fahrgestell (2) einen Kabinenboden (7) umfasst, der zumindest an einem Untergestell des Fahrgestells (2) befestigt ist, das zumindest Längsbalken (5) umfasst, die sich jeweils entlang der Seitenränder des Fahrgestells (2) erstrecken, wobei das Untergestell Verstärkungen (8) zur Unterstützung des Kabinenbodens (7) an seiner Unterseite (11) umfasst, wobei die Verstärkungen (8) jeweils seitlich zwischen einem Balken (5) des Untergestells und einem Flügel (12) des Kabinenbodens (7) eingebettet sind Sie sind ihnen zugeordnet, dadurch gekennzeichnet, dass die Verstärkungen (8) jeweils als sich vertikal entlang der Profillänge erstreckende Profile (V1) ausgebildet sind, wobei die Profile einerseits mit der Unterseite (11) des Kabinenbodens (7) und andererseits quer mit dem ihnen zugeordneten Balken (5) und dem Schenkel (12) des Kabinenbodens (7) verschweißt sind.
  2. Rahmen (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass erste Wände (13a, 13b) jedes der Profile jeweils an den Balken (5) und an die den Verstärkungen (8) zugeordnete Unterseite (11) des Kabinenbodens (7) über senkrecht an eine ihrer Scheiben angrenzende Rücksprünge (15) angeschweißt sind.
  3. Rahmen (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Profile jeweils U-förmig ausgebildet sind.
  4. Rahmen (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die ersten Wände (13a, 13b) jedes der Profile durch die Schenkel des U gebildet sind, die an ihrem freien Ende an den den Verstärkungen (8) zugeordneten Balken (5) angeschweißt sind, wobei eine zweite Wand (14) der Profile senkrecht zu den Schenkeln des U an den Schenkel (12) des Kabinenbodens (7) angeschweißt ist.
  5. Rahmen (2) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jede der Verstärkungen (8) mindestens ein Greiforgan (17a, 17b) aufweist, das so konfiguriert ist, dass es mit mindestens einem Befestigungselement (18a, 18b) zusammenwirkt, das der Befestigung der Zelle (4) an dem Rahmen (2) gewidmet ist.
  6. Rahmen (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass mindestens zwei Greiforgane (17a, 17b) jeder der Verstärkungen (8) jeweils in einem Loch (19a, 19b) ausgebildet sind, das sich parallel zur Erstreckungsebene (P3) des Kabinenbodens (7) erstreckt, wobei die Löcher (19a, 19b) zur Aufnahme von Befestigungsorganen (18a, 18b) ausgebildet sind, die als Bolzen (20a, 20b) ausgebildet sind.
  7. Fahrgestell (2) nach einem der Ansprüche 5 und 6, dadurch gekennzeichnet, dass Eingriffselemente (17a, 17b) aus einer Vielzahl von gegebenen Verstärkungen (8) in einer Richtung (D1) senkrecht zu der Ausdehnungsebene (P3) des Kabinenbodens (7) ausgerichtet sind.
  8. Rahmen (2) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Rahmen (2) zwei Verstärkungen (8) aufweist, die jeweils an jedem der Seitenränder des Rahmens (2) hinter dem Kabinenboden (7) angeordnet sind, wobei die Verstärkungen (8) in einer Querrichtung (T1) der Ausdehnung des Rahmens (2) ausgerichtet sind.
  9. Kraftfahrzeug (1), dadurch gekennzeichnet, dass es einen Rahmen (2) nach einem der vorhergehenden Ansprüche umfasst, auf dem ein Rahmen (2) über mindestens die Verstärkungen (8) eine starre Zelle (4) montiert ist.
EP18714820.0A 2017-04-05 2018-03-06 Fahrgestell für ein nutzkraftfahrzeug mit verstärkungen eines kabinenbodens zur bildung einer schnittstelle zur befestigung einer auf dem fahrgestell montierten zelle Active EP3606804B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1752940A FR3064971B1 (fr) 2017-04-05 2017-04-05 Chassis d'un vehicule automobile utilitaire, muni de renforts d'un plancher-cabine formant une interface de fixation d'une cellule montee sur le chassis
PCT/FR2018/050502 WO2018185387A1 (fr) 2017-04-05 2018-03-06 Chassis d'un vehicule automobile utilitaire, muni de renforts d'un plancher-cabine formant une interface de fixation d'une cellule montee sur le chassis

Publications (2)

Publication Number Publication Date
EP3606804A1 EP3606804A1 (de) 2020-02-12
EP3606804B1 true EP3606804B1 (de) 2024-01-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18714820.0A Active EP3606804B1 (de) 2017-04-05 2018-03-06 Fahrgestell für ein nutzkraftfahrzeug mit verstärkungen eines kabinenbodens zur bildung einer schnittstelle zur befestigung einer auf dem fahrgestell montierten zelle

Country Status (4)

Country Link
EP (1) EP3606804B1 (de)
FR (1) FR3064971B1 (de)
MA (1) MA49032A (de)
WO (1) WO2018185387A1 (de)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2743940A (en) * 1952-08-19 1956-05-01 Fruehauf Trailer Co Trailer frame and floor construction
US3520551A (en) * 1968-01-18 1970-07-14 Sellers Mfg Inc Vehicle frame structure
JPS5563971A (en) * 1978-11-09 1980-05-14 Shin Meiwa Ind Co Ltd Girder construction of luggage carrier for dump truck
FR2477094A1 (fr) * 1980-02-28 1981-09-04 Carrier Carrosserie Sa Plateau de chargement adaptable aux longerons d'un chassis et vehicule pourvu d'un tel plateau
FR2563796B1 (fr) 1984-05-04 1986-10-31 Peugeot Vehicule automobile utilitaire
SE524137C2 (sv) * 2002-08-28 2004-06-29 Scania Cv Abp Chassiram för lastbil
WO2007012710A1 (fr) 2005-07-25 2007-02-01 Sambuling Cellule de vehicule automobile, destinee a un amenagement fonctionnel
DE102010024764A1 (de) 2010-06-23 2011-02-03 Daimler Ag Anbindungskonsole für ein Kraftfahrzeug

Also Published As

Publication number Publication date
WO2018185387A1 (fr) 2018-10-11
FR3064971A1 (fr) 2018-10-12
MA49032A (fr) 2020-02-12
EP3606804A1 (de) 2020-02-12
FR3064971B1 (fr) 2021-01-01

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